The place where Dropbox is spectacularly bad is multiple account support. Google does a good job of multiple account support - you log in to the relevant multiple accounts and things work.

Dropbox expects you to pseudo-merge exactly one personal account with exactly one business account. You end up with a mess. It gets even worse when trying to unmerge them. And is not useful should you have more accounts than exactly one of each. That mess will keep coming back to bite you almost every month as Dropbox doesn't do what you'd expect.

Dropbox is lucky that that they do two things their competitors don't: they support Linux and syncing generally works.